Antiskidding device for autotrucks.



J. P WBBBER. ANTISKIDDING DEVICE FOR AUTOTRUGKS. APPLICATION FILED OCT.8, 1912. ,12 ,141, Patented Jan.26,1915.

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JOHN P. WEBBER, OF NEWARK, NEW JERSEY.

ANTISKIDDING DEVICE FOR AUTOTRUCKS.

Specification of Letters Patent.

Patented Jan. 26, 1915.

Application filed October 8, 1912. Serial No. 724,563.

To all whom it may concern Be it known that I, JOHN P. vVnBBnR, acitizen of the United States, residing at Newark, in the county of Essexand State of New Jersey, have invented certain Improvements inAntiskidding Devices for Autotrucks, of which the following is aspecification.

The objects of this invention are to provide'lan anti-skidding devicewhich can be firmly secured in fixed position upon a wheel so as to haveno relative movement with respect thereto when the wheel is running; to,provide means for securing the device upon a wheel in such immovablerela tiohthereto; to secure simplicity of construction and cheapness ofmanufacture, as well as. great durability and freedom from breakage inuse .to enable the device to be fixed' 'immovably. upon a wheel withoutmutilating or injuring the same; to make the device adjustable so thatit willfit differnt wheels; to secure such adjustability and at the sametime connect the different partsso that .they cannot become separatedand .lost, when not applied to a Wheel; to utilize suchadjustability towedge the body of the device. between. the spokes of the wheel," andtoobtain other advantages and results as may be brought out in thefollowingdescription. V.

Referring to the accompanying drawings, in'which like numerals ofreference indicate the same parts throughout the several figures, igure1 is a sideelevation of a Wheel equipped witlrmy improved anti-skiddingdevice; Fig. 2 is a perspective view of one of the. anti-skiddingdevices detached; Fig. 3 is a perspective view of the body thereof;Fig.,4 is a detail view of one of the clamping hooks ;1Fig. 5is aperspective view of a modified form ofone of said devices attached,whichis the preferred construction; Fig, 6 is a section of the body of thesame, online le -A of Fig. 5; Fig. 7 is a perspective view of one. ofthe adjustable sections of said b,ody,' and Fig. 8 is a perspective viewof the adjusting wedge of said. preferred construction.

In Figs. 1 m4 of said drawings, 1.indicates a'wheel having spokes 2, 2,and a felly 3 carrying a tire 4 which ,may be of solid,

rubber as iscommon. anti-skidding device, 1n the spec fic emhodiment ofit 1llus trated in I said figures,

shaped block 5 adapted" to fit snugly becomprises a wedgetween a pair ofadjacent spokes next to the folly. By virtue of the convergence of thespokes and the corresponding wedge-shape of the block 5. movement of theblock radially inward toward the hub of the wheel is prevented. In fact,the spokes and felly form a pocket in which the block is retainedagainst any material movement in the plane of the wheel, its onlydirection of movement being transverse to said plane of the wheel, andit is in this latter direction that the said block is inserted orremoved. Said block preferably comprises a body portion of wood. whichis shown in the figures now being described as of one integral piece andhaving upon. its opposite sides or faces parallel to the plane of thewheel when the die vice is applied thereto, metallic plates 6, 6securely fastened to the wooden body as for instance by rivets 7, 7extending through said body and plates. It will be understood, however,that the said face plates are not essential to my invention, and arepreferably used only to resist wear and secure greater strength;furthermore, the body of the block 5 may be of any suitable materialwhatever, although wood is preferred for its peculiar qualities. and asI have set forth elsewhere in this specification, said block may besectional. With said block 5 arranged upon a. wheel as described, a U-shaped band or how 8 extends around the tire and felly with its armslying on opposite sides of the wheel closely adjacent thereto and onopposite sides of the block, to which said arms are separably connected.In the opposite parallel faces 9, 9 of the wedge-shaped block 5, I cutgrooves 11,11, which when the device is applied to a wheel, will be inthe direction of the radius thereof. As stated, a U-shaped band 8 isadapted to slip over the block 5, the ends of the band 8 lying adjacentto the said parallel sides or faces 10. 10 of the block 5. Hooks 12, 12engage in appropriate holes or recesses 13 at the ends of the band 8,said hooks being so bent that their shanks 14: will lie within thegrooves 11. of the block. The ends of each shank 14 away from the hookedend is screw threaded as at 15, for the reception of a nut 16. Spanningthe block 5, transverse to the plane of the wheel andupon the end towardthe hub, is a yoke 17 through which the shanks 14: of both of the hooksproject. When the device is placed on a wheel, it will be evident thatby drawing up on the nuts 16, 16, the block 5 will be pressed againstthe felly of the wheel and the band 8 will be drawn against the tire. Bycontinued twisting of the nuts 16, 16, the band 8 may be properly sunkinto the tire, and the whole device clamped in place.

In order to make the device adjustable so as to properly fit betweenspokes differently spaced apart, the construction of the antiskiddingdevice may be as shown in Figs. 5-8. There I have shown the blockcomposed of two sections 18 and 19, it being divided upon a planethrough the axis of the wheel and the center of the block when placed inits operative position upon the wheel. The U-shaped bow or band 20 isconnected to the block by means of hooks 21 passing through the yoke 22and provided with nuts 23 similar to the construction just described.Embedded in the end of the block which normally rests or bears againstthe felly of the wheel, is a slotted arm 2-1 transverse to the planeseparating the sections 18 and 19 and secured to one of the sections 19in any suitable manner, as by screw 25. The end of said arm 2-1 havingthe slot 26 projects into an appropriate groove 27 of the oppositesection 18, and suitable means are provided to slidably secure the arm24: to the section 18, such as screw 28 passing through the slot 26.either directly into the body of the block section or preferably into areinforcing strip 29 sunk in the section transversely of the slot andsecured in any suitable manner as by screws (not shown). A similar arm30 having a slot 31 is arranged in a groove 32 in the opposite end ofthe block from the first said arm 24:. These arms 24.- and 30 aresubstantially parallel, and the second said arm 30 is preferably securedto the same section 19 of the block as is the first said arm 241, by anysuitable means as screws 33. The inner faces of the sections of theblock which are formed by cutting the block apart are provided withtapered grooves 3 1, 35, extending between the arms 24 and 30, eachgroove being deeper at its end next adjacent to the arm 24, and taperingto less depth as it approaches the other arm, preferably to nothing asshown. The said grooves are rectangular in cross-section, and anadjusting wedge 36 between the block sections is adapted to slide insaid grooves 31, 35, it being readily apparent by reference to Fig. 6that when the wedge is slid toward the ends of less depth of the grooves34, 35, the two sections 18, 19 of the block will be forcedcorrespondingly apart, whereas when the wedge 36 is within the deepestportions of grooves 34, 35, the two sections 18, 19 may be broughtcloser together. In order to shift the wedge 36 within the slots 34, 35,as just described, I provide a bolt 37 projecting transversely throughthe slot 31 of the arm 30 on the small end of the block and extendinglongitudinally between the block sections 18, 19, and their grooves 3 1,35. This bolt is appropriately threaded to screw in a longitudinalthreaded socket 38 in the ad justing wedge 36, and as a head 39 on thebolt 37 overlaps the arm 30, screwing said bolt into the wedge 36 servesto draw said wedge toward the arm 30 and thus spread the block sections18, 19. Upon unscrewing the bolt, the sections can be brought togetheragain, and thus any desired width of block may be obtained by properlyadjusting the wedge 36 through manipulation of the bolt 37. When thedevice is removed from a wheel, the sections 18 and 19 are re tainedtogether by means of. the arms 24 and 30, and the parts of the deviceare therefore prevented from separating and becoming lost.

Having thus described the invention, what I claim as new is 1. Thecombination with a wheel, having a rim and spokes, of. an unyieldingblock between said, rim and two adjacent spokes engaging the same toprevent movement 1n the plane of the wheel,.said block having in itsopposite sides grooves disposed radially of the wheel, a band extendingaround. the rim across the tread of the wheel, clamping hooks lying insaid grooves and engaging said band, and means for drawing said clampinghooks longitudinally of their grooves to clamp said band againstthetire.

2. The combination with a wheel. having a rim and spokes, of an.unyielding block between said rim and two adjacent spokes engaging thesame to prevent movement in the plane of the wheel, said block having inits opposite sides grooves disposed radially of the wheel, a bandextending around the rim across the tread of the wheel, clamping hookslying in said grooves and engaging at one end the said band, a yokeconnecting the other ends of said clamping hooks beyond the block, andmeans for drawing said hooks through said yoke to clamp the band againstthe tire.

3. The combination with a wheel having a rim and spokes, of anunyielding block between said rim and two adjacent spokes engaging thesame to prevent movement in the plane of the wheel, said blockcomprising sections adjustable with respect to each other to expand saidblock against said spokes, and means connected to said block extendingaround said rim across the tread of the tire for preventing slippage.

1. The combination with a wheel having a rim and spokes, of ablock'between said rim and two adjacent spokes comprising sectionsadjustable with respect to each other to expand said block against saidspokes, and means connected to said block a rim and spokes,

extending around said rim across the tread of the tire for preventingslippage.

5. The combination with a wheel having a rim and spokes, of a blockbetween said rim and two adjacent spokes comprising sections dividedradially of the wheel and having at their adjacent faces groovesconverging toward the hub of the wheel, a Wedge in said grooves, meansfor tightening said wedge, and means connected to said block extendingaround the rim of the Wheel across its tread for preventing slippage.

6. The combination with a Wheel having of a block between said rim andtwo adjacent spokes comprising sections divided radially of the wheeland having at their adjacent faces grooves, converging toward the hub ofthe wheel, a wedge in said grooves, means for tightening said wedge,means for holding said block sections against separation, and a bandconnected to said block extending around the rim of the wheel across itstread.

7. The combination with a wheel having a rim and spokes, of a blockbetween said rim and two adjacent spokes engaging the same to preventmovement in the plane of: the Wheel, said block comprising sections ofWood adjustable with respect to each other in the plane of the Wheeltoward and away from said spokes, means for adjusting said sections, anda band connected to said blocks extending around the rim of the wheelacross its tread. JOHN P. /VEBBER.

l/Vitnessesr RUssELL M. EVERETT, HOWARD P. KING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

